Microarray Analysis of Yersinia Species
Author Information
Author(s): S. J. Hinchliffe, K. E. Isherwood, R. A. Stabler, P. C. F. Oyston, J. Hinds, R. W. Titball, B. W. Wren
Primary Institution: The London School of Hygiene and Tropical Medicine
Hypothesis
How have Yersinia pestis and Yersinia pseudotuberculosis evolved and adapted to different environments?
Conclusion
The study reveals that Yersinia pestis has a highly fluid and unstable genome compared to Yersinia pseudotuberculosis.
Supporting Evidence
- Yersinia pestis diverged from Yersinia pseudotuberculosis only 1500-20,000 years ago.
- Yersinia pestis has acquired two additional plasmids compared to Yersinia pseudotuberculosis.
- Microarray analysis showed that Yersinia pestis strains are more unstable than Yersinia pseudotuberculosis strains.
Takeaway
Scientists studied two similar bacteria to see how one became a deadly plague while the other causes mild sickness, and found that the plague bacteria changes a lot over time.
Methodology
Microarray techniques were used to analyze genomic DNA from various strains of Yersinia pestis and Yersinia pseudotuberculosis.
Limitations
The presence of genes in the genome does not guarantee they are functional, and the study primarily focused on genomic DNA variations.
Digital Object Identifier (DOI)
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